Chicago Guild
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When: Wednesday, October 16, 2019
6:00 PM
Where: Jewelers Center
5 South Wabash Avenue
Chicago, Illinois  60603
United States
Presenter: Harold Dupuy
Contact: Jennifer Santi, CG

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Cost: $20 - Online
$25 - At the door
Schedule: 6:00 p.m. - Networking, drinks, and hors d'oeuvres
6:45 p.m. - Presentation
7:45 p.m. - Questions and discussion



The Chicago Guild Presents

Laboratory-Grown Diamonds...and the Devices to Keep You Safe (or Not)
Harold Dupuy, FGA, Vice President, Strategic Analysis, Stuller Inc.


Harold Dupuy, FGAJoin the Chicago Guild as they learn about laboratory-grown diamonds from industry expert, Mr. Harold Dupuy.

Mr. Dupuy is a Fellow of The Gemmological Association of Great Britain, a Graduate Gemologist from GIA, a Master Gemologist Appraiser® from the American Society of Appraisers and currently serves as Vice President, Strategic Analysis for Stuller Inc.

This presentation will cover the following:

  • Overview of the jewelry industry
  • History of laboratory-grown diamonds
  • Production methods
  • Market share
  • Consumer insights
  • Screening vs. detection
  • Screening instruments
  • Lightbox
  • FTC Guideline revisions
  • Retailers' plans
  • Q&A





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Mission Statement

The American Gem Society (AGS) is a nonprofit trade association of fine jewelry professionals dedicated to setting, maintaining and promoting the highest standards of ethical conduct and professional behavior through education, accreditation, recertification of its membership, gemological standards, and gemological research.

The Society is committed to providing educational products to inform and protect the consumer and to contributing to the betterment of the trade by creating industry standards to protect the jewelry-buying public and the fine jewelry industry as a whole.

AGS Laboratories, founded to support the AGS mission, is a nonprofit diamond grading laboratory with a mission of consumer protection. Adhering to the AGS Diamond Grading Standards, AGS Laboratories is dedicated to offering diamond grading reports that provide consistency and accuracy based on science.

American Gem Society

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